Class 405/128.65 - Vitrify

Subclass of Class 405 - Hydraulic and earth engineering
Definition: Subject matter for producing a solid phase, water insoluble,
No. of patents: 30
Last issue date: 12/26/2006

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Number	Title	Issue Date
7153061	Method of in situ retrieval of contaminants or other substances using a barrier system and leaching solutions Processes and methods relating to treating contaminants and collecting desired substances from a zone of interest using subterranean collection and containment barriers. Tubular casings having interlock structures are used to create subterranean barriers for contain...	12/26/2006
7055599	Electromagnetic coal seam gas recovery system A system for recovering gas trapped within the earth includes a casing (24) sized and configured to be positioned within a borehole in the earth, the casing (24) formed of a material that is transmissive to electromagnetic energy and gas within the ear...	06/06/2006
6945734	In-situ thermochemical solidification of dense non-aqueous phase liquids A method for in-situ dense non-aqueous phase liquids treatment in which a subsurface source area comprising at least one rapid release contaminant is located and free water removed therefrom. The subsurface source area is then heated to a temperature suitable for ex...	09/20/2005
6921028	Dispersing apparatus Disclosed is a dispersing apparatus comprising a container body; a sealable lid detachable from the container body; a mixing shaft supported by and extending from the lid and having a mixing member; an enclosing member supported by the lid or the mixing shaft and su...	07/26/2005
6912354	Concentric electrode DC arc systems and their use in processing waste materials An electrode assembly comprising concentric tubular electrodes is provided for high temperature processing of materials. The electrode assembly is connected with a power supply that includes switching means for alternatively operating the electrode assembly in a tra...	06/28/2005
6421500	Concentric electrode DC arc systems and their use in processing waste materials An electrode assembly comprising concentric tubular electrodes is provided for high temperature processing of materials. The electrode assembly is connected with a power supply that includes switching means for alternatively operating the electrode assemb...	07/16/2002
6120430	Method of melting solid materials A method of melting solid materials while controlling melt shape, without the expenditure of energy to melt unwanted quantities of surrounding materials, and an apparatus to effect the method. The method comprises the use of a planar starter path between ...	09/19/2000
6012517	Treating non-naturally occurring subsurface soil contaminants with pneumatic injection of dry media An apparatus for pneumatically fracturing a soil formation, and thereafter utilizing or maintaining the fracture network thus formed by continuous injection of a gas stream into the fracture network, and introducing into that gas stream dry media which is...	01/11/2000
5910093	Starter tube for use in vitrification process The invention disclosed here is a starter tube for initiating a vitrification process for melting contaminated soils, waste products, and hazardous materials. The starter tube comprises a tubular sheath made of a flexible material. Received within the she...	06/08/1999
5908267	Treating non-naturally occurring subsurface soil contaminants with pneumatic injection of dry media A method for pneumatically fracturing a soil formation, and thereafter utilizing or maintaining the fracture network thus formed by continuous injection of a gas stream into the fracture network, and introducing into that gas stream dry media which is ent...	06/01/1999
5766303	Process for the remediation of lead-contaminated soil and waste battery casings Lead-contaminated soil and battery casings are remediated using a plasma arc furnace which pyrolyzes the soil and waste battery casings so as to form a vitrified slag and a combustible gas, respectively. The combustible gas along with volatilized lead (an...	06/16/1998
5601382	Solar energy in-situ soil desorption apparatus A method and apparatus for, decontaminating in-situ soil by use of solar energy is provided. A targeted area of contaminated in-situ soil is covered with a substantially sunlight-transmitting, nonporous covering that allows solar energy to penetrate said ...	02/11/1997
5564861	Thermal method of in-situ soil treatment A thermal method of in-situ soil treatment using a charge of combustible substrate placed within the area to be treated and combusted with the use of oxidizer resulting in solid products and generating no gases. The substrate can be a metal, such as alumi...	10/15/1996
5494376	Method and apparatus for controlling in situ waste remediation An in situ waste treatment system for contaminated soil employs a high temperature energy probe which is lowered into a borehole casing that has been inserted into the contaminated soil. The energy probe is activated and then melts surrounding region of t...	02/27/1996
5482402	Method and apparatus for heating subsurface soil for decontamination A technique for in situ decontamination of an earth formation. High gas temperatures can be achieved at subsurface formations by supplying a fuel at a subsurface location, such as at the bottom of a wellbore. Pressurized air or gas preheated to a temperat...	01/09/1996
5370477	In-situ decontamination with electromagnetic energy in a well array In-situ decontamination of soil is accomplished by providing electromagnetic energy of relatively short wavelengths from an array of applicators (antennas), inserted into a borehole array that encompasses the contaminated zone. The borehole array geometry...	12/06/1994
5316411	Apparatus for in situ heating and vitrification An apparatus for decontaminating ground areas where toxic chemicals are buried includes a plurality of spaced electrodes located in the ground and to which a voltage is applied for bringing about current flow. Power delivered to the ground volatilizes the...	05/31/1994
5299887	In-situ process for remediating or enhancing permeability of contaminated soil A process for removing an undesired contaminant from a sub-surface soil matrix comprises the steps of forming a bore hole in the soil, moving a source of microwave energy through the bore hole while radiating electromagnetic energy laterally into the soil...	04/05/1994
5276253	In-situ remediation and vitrification of contaminated soils, deposits and buried materials A method is disclosed in which a plasma arc torch is used to vitrify and remediate a site containing contaminated soils, resulting from a hazardous material deposit or spill, or contaminated buried objects. The contaminated earthen material or subterranea...	01/04/1994
5181797	In-situ soil stabilization method and apparatus A method and apparatus for in-situ solidifying and stabilizing a mass of unstable foundation soil utilizes a plasma arc torch. The torch is inserted into a drilled and cased hole to a selected depth in a subterranean unstable soil layer and the torch is e...	01/26/1993
5181795	In-situ landfill pyrolysis, remediation and vitrification The process of the present invention serves to remediate and reduce the volume of waste materials in a landfill site and increases the useful life of the treated landfill. The process steps involve drilling a series of holes into the waste material mass a...	01/26/1993
5100259	Cold cap subsidence for in situ vitrification and electrodes therefor An electrode for use in in situ vitrification of soil comprises a molybdenum rod received within a conductive sleeve or collar formed of graphite. Electrodes of this type are placed on either side of a region containing buried waste material and an electr...	03/31/1992
5024556	System for enhanced destruction of hazardous wastes by in situ vitrification of soil The present invention comprises a system for promoting the destruction of volatile and/or hazardous contaminants present in waste materials during in situ vitrification processes. In accordance with the present invention, a cold cap (46) comprising a cohe...	06/18/1991
5011329	In situ soil decontamination method and apparatus Disclosed is in situ decontamination methods and apparatus for injecting a hot gas into boreholes formed in a contaminated soil area to vaporize the soil moisture and contaminants, and for collecting the vaporized contaminants at the surface of the soil. ...	04/30/1991
5004373	Method for initiating in-situ vitrification using an impregnated cord In-situ vitrification of soil is initiated by placing a cord of dielectric material impregnated with conductive material in thermally-conductive contact with the soil, and energizing the cord with an electric current for heating the cord and starting the ...	04/02/1991
4956535	Electrode systems for in situ vitrification An electrode comprising a molybdenum rod is received within a conductive collar formed of graphite. The molybdenum rod and the graphite collar may be physically joined at the bottom. A pair of such electrodes are placed in soil containing buried waste mat...	09/11/1990
4844807	Insitu hazardous waste treating apparatus and method of using same The insitu method of detoxifying a hazardous waste impoundment to a desired degree at a first station thereon without contaminating the ambient atmosphere is carried out by an apparatus (U) that includes a power operated vehicle (V) that movably supports ...	07/04/1989
4776409	Insitu waste impoundment treating apparatus and method of using same An apparatus (U) is shown in FIGS. 11-13 that includes a power operated vehicle (V) that supports a vertically movable frame (W) that has a confined space defining shroud (X) on the lower end thereof that may be placed in sealing contact with the upper su...	10/11/1988
4762991	Probe for optically monitoring progress of in-situ vitrification of soil A detector system for sensing the progress of an ISV process along an expected path comprises multiple sensors each having an input port. The input ports are distributed along the expected path of the ISV process between a starting location and an expecte...	08/09/1988
4376598	In-situ vitrification of soil A method of vitrifying soil at or below a soil surface location. Two or more conductive electrodes are inserted into the soil for heating of the soil mass between them to a temperature above its melting temperature. Materials in the soil, such as buried w...	03/15/1983

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Class 405/128.65 - Vitrify